BUY KA431Z https://www.utsource.net/itm/p/4591722.html
Programmable Shunt Regulator
Description: The KA431Z is a three-terminal adjustable shunt regulator from Fairchild Semiconductor. Features: * Output voltage adjustable from 1.2V to 37V * Low temperature coefficient * Low output noise * Internal current limiting * Internal thermal overload protection Applications: * Battery-powered equipment * Voltage regulators * Power supplies * Voltage references * Industrial control systems (For reference only)